Incubator-heater.



Patented June 14, 1910.

W/ 7WESSES LU UQ/L eerie,

WILLIAM AUGUSTUS MUMAHQN, 9F FPHILADELPHIA, PENNSYLVANIA.

IECUBATQE-HEATER.

semen,

Specification of i'iettera Patent.

Patented June 141, 1910.

Application filed. June 19, 1909. Serial No. 503,104.

To all whom it may concern;

Be it known that I, VViLLiAzu AUoUs'rUs Moll-Anon, a citizen of theUnited States, and a resident of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and ImprovedIncubator-Heater, of which the following is a full, clear, and exactdescription.

The invention contemplates an incubator heater by which pure air onlywill be delivered to the incubator box or hatching compartment, the airat all times containing the requisite moisture irrespective of outsideatmospheric conditions.

To this end the heater in general consists of a water tank, an air ductor pipe, a lamp or burner, a hood and a hot water flue, the tank beingpreferably constructed with insulated walls to confine the heat, the airduct leading from the outside of the tank near the bottom thereof, anddischarging at a point near the top and provided with a valve above thenormal water level in the tank for the admission of moisture, the hotwater line surrounded by and spaced from the hood and surrounded by theair duct, and the hood surrounding the chimney of the lamp anddischarging the products of combustion at the Bottom through suitableducts in the tank.

Reference is to be had to the accompanying drawings formin a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both the views.

I Figure 1 is a side elevation of an incubator having my improved heaterapplied thereto; and Fig. 2 is a central vertical section through theheater on an enlarged scale. In the construction of the heater, a watertank 10 is provided with metal lined and jacketed walls having anintermediate filling of insulating material, the tank being ordinarilyin the form of an upright cylinder with a close-lilting removable coverii, and a central opening in the bottom which is covered and isolatedfrom the water space by an upwardly-cxlending importer-ate hood 12.llxlending radially through the bottom of the tankfrom the centralopening, and arranged adjacent to the inner lining, are

outlets or ducts 13 for the discharge of the fumes and other products ofcombustion from a lamp 14, the lamp having a chimney 15 extendingthrough the opening in the bottom of the tank to a point near the topol" the hood 12. The chimney is preferably of tapering form having anopening 16, covered with isiuglass or the like, through which the flameof the burner may be in- 6G spected.

A hot water flue 18 surrounds and is spaced from the hood 12 and hasopeni in the sides adjacent to the bottom of t e tank, and is open atits upper end. An air duct or pipe 19 leads into the tank at a pointnear the bottom and is provided with a coil 20 in its length,surrounding and spaced from the flue, the coil extending above and overthe u per end of the line, at which point the duct passes to thevertical center of the tank, and above the normal. water level isprovided with a valve-controlled opening 20 in the top for the admissionof the vapor, the stem 21 of the va1ve21 being threaded into a centralnut carried by the cover. From the vapor admission 0 col the air ductpasses to the outside of t e to to the incubator box, and at a point ofits length is provided with an n tending discharge pi e 22 see ig. 1)automatically controlled lry a amper regulator 23. The water tank isalso provided with such appurtenances as a drain cook 24, a. wa-

ter gage 25, a combined relief valve and filling plug 26, and a waterlevel re lator, the relief valve and filling plug being preferablyformed as a part of the removable cover and consisting of anupwardly-extending nipple having a. on hinged to swing outward y. Thewater level regulator comprises a water supply pipe 27 leading to thetank and a float-controlled valve 28 seating over the inner end of thepipe.

In the operation of the heater, the oi passes from the outer atmospherethrough, the air pipe or duct 19, and in flowing through the coil isheated by the sat ing water before passin box, the water as it is heatedaround the hood being projected against the exit end of the coil by thetine 18, the water in its circulation wnstantly flowing in the bottomopenmgs top. .The vapor as it rises from the surface of the water in thetank passes into the valve opening in a quantity which may be reduced orincreased by the adjustment of the valve 21, the proper quantity ofmoisture for the no wardly-ex- 80 over the top, 90

roundt the incubator of the jacket and discharging at the suitablemanner. Should the water in the normal water level and provided with atank become too highly heated, the vapor or valve-controlled vaporopening Within the steam will raise the relief valve and escape. tankabove saidlevel.

e products of combustion from the lamp 3. The combination in anincubator heater, or burner after passing through the chimney of a watertank having an opening in the and the-hood esca e through the outlets orbottom thereof, a hood arranged over said ducts 13. The filing of thetank may be I opening, the heater extending through saidperformed eitherby removin the cover or' opening into the hood, a hot-air supp y pipethrough the relief valve and filling plug 26, 1 leading to the incubatorthrou h the tank or through the pipe 27. from the bottom thereof upwanly and pro- Having thus described my invention, I vided with a coilin'its length surrounding claim as new and desire to secure by Lettersthe hood, and a flue for directing the Water atent: I heated around thehood against the upper 1. The combination in an incubator heater,portion "of the coil, arranged between and of a Water tank having an aproximately spaced from the coil and hood and open at p i; from the thebottom and top. I bottom thereof, with the top of the hood ar- 4. Thecombination in an incubator heater, ranged below the normal water levelin the of a'water tank, means for heating the water tank, a lamp havinga chimney extending in thetank, a hot air supply pipe leading to throughthe bottom of the tank into the the incubator through the tank andheated hood, a hot-air supply pipe for the incuby the Water in the tank,said supply pipe bator passing from the outer air through the having avapor inlet opening therein coinlower portion of the tank to the upperpormunicating with the tank and arranged tion t, ereof, and a hot waterflue to direct above the normal water level in the tank, and the heatedWater around the hood tothe upa manually-operated valve controlling theper portion of the hotair pipe, arranged besaid inlet opening. tweensaid pipe and hood and open at the In testimony whereof I have signed mybottom and top. name to this specification in the presence of 2. Thecombination in an incubator heater, two subscribing Witnesses. of awater tank, a burner for heating the WILLIAM AUGUSTUS mummy Water in thetank, and a hot air supply pipe llitnesses: leading to the incubatorthrough the Water WiLsoN H. Esnnn,

tank, having a coil in its length below the I HAPRY Anrmn

